It's pretty easy for players. You can lock everything and give them access to their own token(s) only. The player can pan and zoom their own view, but when required you can sync all player views with your current view.
I've used Owlbear Rodeo in online sessions with co-workers that had never before played any ttrpgs, and it went great.
It was not that long ago when Android changed my on screen keyboard to a different layout whenever I was in a different country. Really annoying - I don't suddenly type in Danish when I'm on a business trip to Lyngby (near Copenhagen)
Ttrpg's can definitely be used by therapists (e.g.see
https://gametogrow.org/ ) but people in general should not underestimate the skill and training professional therapists bring to the table. Just playing an rpg is not therapy.
clueless